The individual shaft sections of the 94 inch (240 cm)-long probe are constructed of 11mm diameter 7075 T6 aluminum anda Kevlar draw-line tensioning system make the probe easy to assemble and pack down. Markers on the shafts make it easy to read the depth of snow. A quick-release tensioning system makes it easy to assemble the probe and also allows it to pack down easily when not in use.